Larson Electronics 14" Exhaust Gravity Air Louver for 12" Fans

14" Exhaust Gravity Air Louver for 12" FansThis gravity damper wall shutter is designed for 12" fans and installment in horizontal fan exhaust applications and requires air pressure and air flow to open. This unit has a max velocity of 2000 fpm. The frame and tie rods are constructed of G-90 galvanized steel, and the blades are made of mill finished aluminum. The shutter frame measures 2-1/4" in depth with an open depth of 6-1/4". The shutter overall square measures 23" and is compatible with Larson Electronics EPF-LPSM and EPF-HPSM series explosion proof fans.